Apache is a free and open-source cross-platform web server software.
Bluehost is a large web host known for its WordPress expertise, variety of “one-stop-shop” services, and bargain prices.
Fastly is a cloud computing services provider. Fastly's cloud platform provides a content delivery network, Internet security services, load balancing, and video & streaming services.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.